The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With environmental sealing and a wide operating temperature range from -65°C to 200°C, they ensure reliable performance in demanding conditions. Available in various configurations including front and rear wall mount, jam nut, and box mount receptacles, these connectors offer versatility for different applications. Constructed with aluminum shells and offering multiple plating options, they meet stringent military specifications for durability. The use of M39029 rear release crimp contacts ensures secure connections, while options for RoHS compliant finishes cater to environmental regulations. Suitable for aerospace, defense, and industrial applications, these connectors provide reliable electrical connectivity in critical systems.